This song is very popular because of how age is going by and because since everyone ages it can tell people that people go through life quickly. What this song is many describing is that age and life comes and goes very quickly and very fast. How the band, Five For Fighting describes this is that it describes a person through his/her life cycle and that it starts out with he is 15 years old, then he slowly ages more and more over time. What I have noticed is that, once in awhile, he talks more about being 15 again, and he keeps doing it over and over. Some questions that have about this song is that why does he chose the ages like 67 or 45 instead of going every 10 years of age (for example, 25, 35, 45, 55, 65, 75, 85, 95, 96, 97, 98, 99.),
